package com.study.annotation;

import org.aspectj.lang.JoinPoint;
import org.aspectj.lang.annotation.After;
import org.aspectj.lang.annotation.AfterThrowing;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Pointcut;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Component;
import org.springframework.web.context.request.RequestContextHolder;
import org.springframework.web.context.request.ServletRequestAttributes;

import javax.servlet.http.HttpServletRequest;
import java.lang.reflect.Method;
import java.util.Arrays;


/**
 * 切点类  
 * @author ONE_LLX
 * @since 2019-02-25
 * @version 1.0  
 */    
@Aspect
@Component
public  class SystemLogAspect {    
    


//    @Resource
//     private LogService logService;    
    //本地异常日志记录对象    
     private  static  final Logger logger = LoggerFactory.getLogger(SystemLogAspect.class);
    
    //Service层切点    
//    @Pointcut("@annotation(com.annotation.SystemServiceLog)")    

    @Pointcut("@annotation(com.study.annotation.SystemControllerLog)")
    public  void controllerAspect() {
    }

    /**
     * 前置通知 用于拦截Controller层记录用户的操作
     *
     * @param joinPoint 切点
     */
    @After("controllerAspect()")
     public  void doAfter(JoinPoint joinPoint) {

        HttpServletRequest request = ((ServletRequestAttributes) RequestContextHolder.getRequestAttributes()).getRequest();
        //前台取cookies
//        Manager loginuser=null;
//        if (subject.getPrincipal() instanceof Manager){
//            loginuser = (Manager) subject.getPrincipal();
//        }
         try {
            //*========控制台输出=========*//

             System.out.println("=====前置通知开始=====");
             System.out.println("请求方法:" + (joinPoint.getTarget().getClass().getName() + "." + joinPoint.getSignature().getName() + "()"));
             System.out.println("方法描述:" + getControllerMethodDescription(joinPoint));
             System.out.println("@After：参数为：" + Arrays.toString(joinPoint.getArgs()));
             System.out.println("@After：被织入的目标对象为：" + joinPoint.getTarget());
             try{
                // System.out.println("请求人:" + (loginuser ==null ?"非法访问":loginuser.getManagerAccount()));
             }catch (Exception e){
                 logger.error("没登录请求");
             }
             System.out.println("=====前置通知结束=====");
            //*========数据库日志=========*//
        }  catch (Exception e) {
//            //记录本地异常日志
            logger.error("==前置通知异常==");
            logger.error("异常信息:{}", e.getMessage());
            e.printStackTrace();
        }
    }

    
    
    
    /**  
     * 异常通知 用于拦截service层记录异常日志  
     *  
     * @param joinPoint  
     * @param e  
     */    
    @AfterThrowing(pointcut = "controllerAspect()", throwing = "e")
     public  void doAfterThrowing(JoinPoint joinPoint, Throwable e) {
    	HttpServletRequest request = ((ServletRequestAttributes) RequestContextHolder.getRequestAttributes()).getRequest();
    	//前台取cookies
    	 //前台取cookies
//        Manager loginuser=null;
//        if (subject.getPrincipal() instanceof Manager){
//             loginuser = (Manager) subject.getPrincipal();
//        }
         try {
              /*========控制台输出=========*/
             System.out.println("=====异常通知开始=====");
             System.out.println("异常代码:" + e.getClass().getName());
             System.out.println("异常信息:" + e.getMessage());
             e.printStackTrace();
             System.out.println("异常方法:" + (joinPoint.getTarget().getClass().getName() + "." + joinPoint.getSignature().getName() + "()"));
             System.out.println("方法描述:" + getControllerMethodDescription(joinPoint));
             try {
                // System.out.println("请求人:" + (loginuser==null ?"非法访问":loginuser.getManagerAccount()));
             }catch (Exception e1){
                 logger.error("没登录访问");
             }

             System.out.println("请求参数:" + Arrays.toString(joinPoint.getArgs()));
             System.out.println("=====异常通知结束=====");
        }  catch (Exception ex) {
            //记录本地异常日志    
            logger.error("==异常通知异常==");    
            logger.error("异常信息:{}", ex.getMessage());
            e.printStackTrace();
        }    
         /*==========记录本地异常日志==========*/    
  }    
    
    
    
    
   
    
    
    /**  
     * 异常通知 用于拦截service层记录异常日志  
     *  
     * @param joinPoint  
     * @param e  
     */    
//    @AfterThrowing(pointcut = "serviceAspect()", throwing = "e")    
//     public  void doAfterThrowing(JoinPoint joinPoint, Throwable e) {    
//        HttpServletRequest request = ((ServletRequestAttributes) RequestContextHolder.getRequestAttributes()).getRequest();    
//        HttpSession session = request.getSession();    
        //读取session中的用户    
//        User user = (User) session.getAttribute(WebConstants.CURRENT_USER);    
//        //获取请求ip    
//        String ip = request.getRemoteAddr();    
//        //获取用户请求方法的参数并序列化为JSON格式字符串    
//        String params = "";    
//         if (joinPoint.getArgs() !=  null && joinPoint.getArgs().length > 0) {    
//             for ( int i = 0; i < joinPoint.getArgs().length; i++) {    
//                params += JSONUtil.toJsonString(joinPoint.getArgs()[i]) + ";";    
//            }    
//        }    
//         try {    
//              /*========控制台输出=========*/    
//            System.out.println("=====异常通知开始=====");    
//            System.out.println("异常代码:" + e.getClass().getName());    
//            System.out.println("异常信息:" + e.getMessage());    
//            System.out.println("异常方法:" + (joinPoint.getTarget().getClass().getName() + "." + joinPoint.getSignature().getName() + "()"));    
//            System.out.println("方法描述:" + getServiceMthodDescription(joinPoint));    
//            System.out.println("请求人:" + user.getName());    
//            System.out.println("请求IP:" + ip);    
//            System.out.println("请求参数:" + params);    
//               /*==========数据库日志=========*/    
//            Log log = SpringContextHolder.getBean("logxx");    
//            log.setDescription(getServiceMthodDescription(joinPoint));    
//            log.setExceptionCode(e.getClass().getName());    
//            log.setType("1");    
//            log.setExceptionDetail(e.getMessage());    
//            log.setMethod((joinPoint.getTarget().getClass().getName() + "." + joinPoint.getSignature().getName() + "()"));    
//            log.setParams(params);    
//            log.setCreateBy(user);    
//            log.setCreateDate(DateUtil.getCurrentDate());    
//            log.setRequestIp(ip);    
//            //保存数据库    
//            logService.add(log);    
//            System.out.println("=====异常通知结束=====");    
//        }  catch (Exception ex) {    
//            //记录本地异常日志    
//            logger.error("==异常通知异常==");    
//            logger.error("异常信息:{}", ex.getMessage());    
//        }    
//         /*==========记录本地异常日志==========*/    
//        logger.error("异常方法:{}异常代码:{}异常信息:{}参数:{}", joinPoint.getTarget().getClass().getName() + joinPoint.getSignature().getName(), e.getClass().getName(), e.getMessage(), params);    
    
  //}    
    
    
    /**  
     * 获取注解中对方法的描述信息 用于service层注解  
     *  
     * @param joinPoint 切点  
     * @return 方法描述  
     * @throws Exception  
     */    
//     public  static String getServiceMthodDescription(JoinPoint joinPoint)    
//             throws Exception {    
//        String targetName = joinPoint.getTarget().getClass().getName();    
//        String methodName = joinPoint.getSignature().getName();    
//        Object[] arguments = joinPoint.getArgs();    
//        Class targetClass = Class.forName(targetName);    
//        Method[] methods = targetClass.getMethods();    
//        String description = "";    
//         for (Method method : methods) {    
//             if (method.getName().equals(methodName)) {    
//                Class[] clazzs = method.getParameterTypes();    
//                 if (clazzs.length == arguments.length) {    
//                    description = method.getAnnotation(SystemServiceLog. class).description();    
//                     break;    
//                }    
//            }    
//        }    
//         return description;    
//    }    
    
    /**  
     * 获取注解中对方法的描述信息 用于Controller层注解  
     *  
     * @param joinPoint 切点  
     * @return 方法描述  
     * @throws Exception  
     */    
     public  static String getControllerMethodDescription(JoinPoint joinPoint)  throws Exception {
        String targetName = joinPoint.getTarget().getClass().getName();    
        String methodName = joinPoint.getSignature().getName();    
        Object[] arguments = joinPoint.getArgs();    
        Class targetClass = Class.forName(targetName);    
        Method[] methods = targetClass.getMethods();    
        String description = "";    
         for (Method method : methods) {    
             if (method.getName().equals(methodName)) {    
                Class[] clazzs = method.getParameterTypes();    
                 if (clazzs.length == arguments.length) {    
                    description = method.getAnnotation(SystemControllerLog. class).description();    
                     break;    
                }    
            }    
        }    
         return description;    
    }    
}    